add implementation

test/test.ts

@@ -0,0 +1,31 @@
+import 'typings-test'
+
+import * as should from 'should'
+
+import * as smartdelay from '../dist/index'
+
+describe('smartdelay', function () {
+    it('.delayFor should delay async', function(done) {
+        this.timeout(5000)
+        let timePassed = false
+        setTimeout(() => {
+            timePassed = true
+        },2000)
+        smartdelay.delayFor(3000).then(() => {
+            should(timePassed).be.true()
+            done()
+        })
+    })
+    it('.delayFor should pass on a type', function(done) {
+        this.timeout(5000)
+        let timePassed = false
+        setTimeout(() => {
+            timePassed = true
+        },2000)
+        let hey = 'heyThere'
+        smartdelay.delayFor<string>(3000, hey).then((stringArg) => {
+            should(stringArg).equal('heyThere')
+            done()
+        })
+    })
+})